When the identity of Nadya Suleman's fertility doctor was made public this week, the Internet lit up with angry commentary. Many called for Dr. Michael Kamrava to be stripped of his medical license -- or worse -- for providing the fertility treatments that led to Suleman's 14 children, including last month's octuplets. Rosalind Saxton had a different reaction.

A few months after Dr. Michael Kamrava helped Nadya Suleman become pregnant with octuplets, he transferred at least seven embryos to another patient. She was in her late 40s and wanted just one baby. Now she's five months pregnant with quadruplets and hospitalized at Los Angeles County-USC Medical Center, according to several sources familiar with the situation. The new case could add to concerns about Kamrava's practice and about whether the fertility industry needs more regulation.

A British plan to allow scientists to use hybrid animal-human embryos for stem cell research won final approval from lawmakers in a sweeping overhaul of sensitive science laws. The House of Commons also clarified laws that allow the screening of embryos to produce babies with suitable bone marrow or other material for transplant to sick siblings. The legislators voted 355 to 129 to authorize the proposals after months of debate that has pitted Prime Minister Gordon Brown's government and scientists against religious leaders, antiabortion campaigners and others.

Your Oct. 6 article "The Embryo Dilemma" overlooks another compelling choice with extra embryos: Continue to pay for the storage, knowing that during our children's life span, stem cell technology will improve to the point that these little cell clusters can save or extend life. Having had three matrilineal generations die from different, devastating organic brain diseases, I have kept our excess embryos in storage hoping that they will be the ace up my sleeve if I become another brain disease victim.

Re "On the cusp of life, and of law," Oct. 6 The push to legally define embryos as persons is aimed at abortion, but the core of the debate isn't whether an embryo constitutes human life. Of course it does. The real debate has to do with the rights of embryos. A person, any person, does not have the right to life if it depends on using another's body without permission. We do not force others to donate bone marrow, blood or even postmortem organs to save a life, none of which risks the life of the donor.

BEHIND EVERY ONE of the approximately half-million embryos in frozen storage in the United States are the adults responsible for creating them. About half ultimately decide to discard them, research has shown, a procedure that can be as unceremonious as a lab technician dumping the contents of a glass pipette into a hazardous-waste container. The other half face a more complex resolution.

Six years of frustration and heartbreak. That's how Gina Rathan recalls her attempts to become pregnant. Finally, she and her husband, Cheddi, conceived a daughter, now 3, through in vitro fertilization. About a year later, she became pregnant with a second child, naturally. Their family was complete. Then, a year ago, the Fountain Valley couple received a bill reminding them that their infertility journey wasn't quite over.

DONATING embryos for adoption may seem a logical choice for people with leftover embryos, but few choose to do so. Leanna Wolfe, 55, now understands some of the obstacles. The Los Angeles woman, a professor of anthropology at L.A. Valley College, decided at age 51 that she would try to have a baby. She found both egg and sperm donors among people she knew. Twelve embryos were made, and Wolfe underwent embryo transfers twice, but both cycles failed.

Scientists in California say they have produced embryos that are clones of two men, a potential step toward developing scientifically valuable stem cells. The new report from La Jolla documents embryos made with ordinary skin cells. But it's not the first time human cloned embryos have been made. In 2005, for example, scientists in Britain reported using embryonic stem cells to produce a cloned embryo. It matured enough to produce stem cells, but none were extracted.